package main

import "fmt"

func main() {
	var (
		a = 1 // 自动推导类型
		b = 2
	)
	fmt.Println("a: ", a)
	fmt.Println("b: ", b)

	const (
		c = 1
		d = 2
	)
	fmt.Println("c: ", c)
	fmt.Println("d: ", d)
}
